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Help diagnose my hoya kentiana

7 years ago

I've had this hoya for about a month. The only issue I initially noticed was a snail (haven't found more, and don't know if this is relevant.) The current issue is development of big black spots on leaves, which then shrivel and die. The black spots are visible on both the top and bottom of the leaves. The first picture are some leaves that have been lost to the spots. The second are very small brown spots on live leaves that I suspect may turn into the big black ones? I'm leaning toward fungal infection but am so unsure. Please help.

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